/// 读入整数,并打印消息告知用户
/// 则个数字是偶数还是奇数

#include<iostream>
#include<istream>
#include<ostream>

int main() {
	int x;
	while (std::cin >> x)
	  if (x % 2 != 0)    //填入条件
		std::cout << x << " is odd.\n";
	  else
		std::cout << x << " is even.\n";
}
